Flip flop stand up paddleboard



FIG. 1 is a front, left, and top perspective view of a flip flop stand up paddleboard showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

CLAIM The ornamental design for a flip flop stand up paddleboard, as shown and described. 